Beijing Lianyongxin construction hardwares Limited was established in 2007in Beijing,we are a professional manufacturer in door& window hardwares,major brand as?Lianxin??our products are including handles,hinges,espag rods,locks,rollers,window operators and other raletive products of window and door.



Lianyongxin had own R&D team,more than 10 engineers design new items every year,we have our own technology control department which control the products' quality strictly,our brand had more ...